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Lesson Example Discussion Quiz: Class Homework

Step-5

Title: Perimeter of Rectangle

Grade: 4-a Lesson: S1-L4

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	The perimeter of a rectangle is 16 meters. The length is 6 meters. What would the width be?
2	Step	The perimeter(p) of a rectangle is	16 mtrs
3	Step	The length(l) of a rectangle is	6 mtrs
4	Hint	To find the width(w) of a rectangle	p = 2(l + w) w = \$p / 2\$ - l
5	Step	Substitute the values by using width formula	w = \$16/2 - 6\$
6	Step	After division, we get	w = 8 - 6
7	Step	After subtraction, we get	2
8	Step	Then the width of a rectangle is 2 mtrs
9	SumUp	Can you summarize what you’ve understood in the above steps?
10	Choice.A	This is not correct because it doesn’t satisfy the given condition that the perimeter	1 mtr
11	Choice.B	This is correct because it satisfy the given condition that the perimeter	2 mtrs
12	Choice.C	This is not correct because it doesn’t satisfy the given condition that the perimeter	3 mtrs
13	Choice.D	This is not correct because it doesn’t satisfy the given condition that the perimeter	1.5 mtrs
14	Answer	Option	B
15	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

The perimeter of a rectangle is 16 meters. The length is 6 meters. What would the width be?

Step

The perimeter(p) of a rectangle is

16 mtrs

Step

The length(l) of a rectangle is

6 mtrs

Hint

To find the width(w) of a rectangle

p = 2(l + w)

w = \$p / 2\$ - l

Step

Substitute the values by using width formula

w = \$16/2 - 6\$

Step

After division, we get

w = 8 - 6

Step

After subtraction, we get

Step

Then the width of a rectangle is 2 mtrs

SumUp

Can you summarize what you’ve understood in the above steps?

Choice.A

This is not correct because it doesn’t satisfy the given condition that the perimeter

1 mtr

Choice.B

This is correct because it satisfy the given condition that the perimeter

2 mtrs

Choice.C

This is not correct because it doesn’t satisfy the given condition that the perimeter

3 mtrs

Choice.D

This is not correct because it doesn’t satisfy the given condition that the perimeter

1.5 mtrs

Answer

Option

SumUp

Can you summarize what you’ve understood in the above steps?